SureFire has engineered this unique, upgraded G2X model to provide law enforcement officers with a hard-working flashlight that can meet the rigorous demands of patrol work. Constructed from ultra-durable Nitrolon polymer, the casing contains a nearly indestructible LED, which regulates battery power for maximum beam output. This light features a piercing 400-lumen beam at its highest setting, which can be set to run for a moment or at a constant rate thanks to the dual-output switch located at the tailcap for convenience. The 15-lumen low beam has an impressive 45-hour runtime for long shifts when constant lighting is critical. This lightweight, functional flashlight has a long-reaching beam that also provides peripheral illumination, essential to officers on patrol who need an added tactical advantage.